Machine for applying card-clothing to cylinders.



PATENTED' MAY 24, 1904.

. c. MILLS. MACHINE FOR APPLYING CARD GLOTHING To CYLINDERS.

APPLIGATION FILED MARLIZ. 1903;-

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PATENTBD MAY; 24,1904.

No. 760,696. I

' 6 c. MILLS.

MACHINE FOR APPLYING CARD CLOTHING T0 CYLINDERS.

APPLICATION FILED HAR- 12.1903.

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No. 760,696- I PATENTED MAY 24, 1904. 0. MILLS. I MACHINE FOR; APPLYINGCARD CLOTHING-T0 CYLINDERS.

APPLICATION FILED MAR. 12, 1903.

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' 110 760,696, BATENTED MAY 24, 1904.

(L'MILLS.

MACHINE FOR APPLYING CARD CLOTHING TO GYLINDERS.

APPLIQATION rum) um. 12. 1903. no MODEL.

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U TED STATES Patented May 24. 19o4.'

PATENT OFFICE.

PETTEE MACHINE SHOP OF NEWTON, "MASSACHUSETTS, A CORPOE RATION oFMASSACHUSETTS.

MJA C HlN EQFOR A Lv N CARD-CLOTHING, To o'YL upERsff:

-SPEGIFICATION forming part-of Letters Patent No.-'760,696, dated-.lvlay 24, 1904;

Application filed Mai'ch 12, 19 03.

To. tummy co nce rle.

Be it, known that I, CHARLES MILL a citi zenof the United States, and aresident ofNew- 1 ence being had-to the accompanying drawings, 1

I formingiapart ofthis specification. Machines for applyingcard-clothing to cylinders as s heretofore constructed embody means formounting and turning the cylinder.

to which the clothing is being applied, a trav I eling carriage moyablelengthwise the cyli'nr der and having means. for guiding the fillet orlength of card-clothing which is being applied: to "the cylinder,meanshfor exerting a" tensionupon it andfor varying said tension,

2 0 and further means for automatically ascertain; ing the degree ofsaid tension)" The carriage: driving mechanism is adjustably connectedwith that t rning, the cylinder, so that the travel ofthe carriage maybe varied tocorreispond in thenecessary way with the siirface Speed ofthe cylinder. 13 I v The present invention has to dovonly'with. themeans for feeding oriactuating th'e'car- I 'riage. Heretofore-this hasconsisted of a" 39 lon Screw of'about the length of the cylinder to becovered and provided with rotation from thecylinder-turning deviceslanda Worm-wheel -mounted ipon the carriage in a manner to engage the threadof the screw and adapted to be clamped stationarytothe car riage topermit the carriage tobe fed by the screw'and to be released orunclampedto e'n able the carriage after a feeding movement to bereturned to its initial position. This feed- 4 ing mechanism was located at the'forw'ard end: of the carriage, and it has been found in praegtice to be undesirable, because the engagev ment between the worm-wheeland the screw is limited to twoor three teeth of the wheel andbecause ofthe location of the worm-wheel upon the carriage and because of thelarge Strains to which the screw and'worm-wheel Serial'lip. Il i'FABBL(No medel.)

are subjected, thelpractical effect being to soon destroy the worm-wheeland to injure the screw and. to cause the carriage to travel hard andirregularly; I do not, however; dispenseentirely-with the use of theworm-wheel,

butemploy it as 'a' means for returning the carriage after a feedingmovement to'its or1gi nalposition a's will be hereinafter explained;This use does not subject the worm 'or the feeding-screw to' strains anddoes not affect the operation of feeding the card-clothing; so

that the'use of'the worm-wheel forthis pose is'not objectionable. h

For feeding the carriage there is employed a long nut, which is attachedto'thec'iarriage near thecenter of its length and in [such a manner thatit may be readily engaged with the driving-Screw and also disengagedfrom it and also jso that when engaged with the driving {screw andworked it shall bear against the frame of the carriageajnd thus relieveits holding and supporting mechanism from strain. By acarriage-feedingmechaniism of this" organization the connection bei tween the carriageand: the driving-screw is obtained at adesirable point with respect tothe length'pf the carriage and the strains to' which it is subjected,and itisi of such azcharf acteiithat the work is distributed upon a con:siderable length of the driving-screw, and the Wear upon the nut insteadof being confined; to two or three threads is extended to alarge numberof threads andwhich are shaped to theicurvatureiofthe, screw and arenot're versely shaped with respectlto the screw as are thethreads of theworm-wheel.

in'con jun ction with the drawings forming a part of this specification,wherein ,'f I

Figure 1 'saview n end elevation of the carriage, also showing aportionof a cylinder to which card-clothing is being applied; Fig. 2 isa view in vertical section through the carriage, its stand, thedrivingscrew, and the nut, and in elevation of parts back of thesame.Fig. 3 is aview principally in" front elevation of the carriage andcarriage- I 'willfnow describe theinvention infdetail stand. Fig. 4 is aplan view of the carriagestand, carriage, driving-screw, and feedingnut,all the parts above the carriage-floor being omitted.

Referring to the drawings, A represents a cylinder of a carding-enginemounted in the machine, to be turned by mechanism not shown.

B represents a fillet or length of card-clothing running from thecarriage.

C is the carriage. It is mounted in the usual way to slide upon thecarriage-stand c, which extends crosswise the machine and so that thecarriage may be slowly moved lengthwise the cylinder while thecard-clothing is being wound upon it, the feeding movement of thecarriage being about equal to the width of the fillet or length ofcard-clothing for every full revolution of the cylinder A.

The card-clothing guiding and tension devices shown in the drawings willbe recognized as well known in the art. They consist mainly of arecessed passageF in the upright F, above which passage the plate F issupported by means of the adjusting-screw f, carried by the bracket f;From this passage the incoming clothing-strip passes over intermediatedrums, as indicated at F and F*, and around the lever F to the cylinderA.

D is a long driving-screw mounted in the carriage-stand and turned by asprocketwheel d at one end and a sprocket-chain (not shown) whichconnects it with the drivinggear of the cylinder-turning mechanism.

d is a worm-wheel mounted upon a shaft 41 and applied to the carriage.The wormwheel is free to turn with the carriage while it is being fed bythe driving-screw. It is used only to move the carriage either to itsinitial position or such other positions as may be preferred when it isdesirable to move it quickly; but it performs no function in feeding thecarriage. When employed for returning or otherwise moving the carriage,a turning-handle (not shown) is applied to the square end 03 of itsshaft and which is used in turning the shaft, and consequently theworm-wheel, at any speed desired.

E is the feeding-nut of the carriage. It is made long and its threads 6are curved to the curve of the threads of the driving-screw, but aremade slightly thinner, so that the nut may have a very slightlongitudinal movement when subjected to strain, whereby its end d maycome into contact with the portion of the frame of the carriage in linewith the screw, and in order also that the part by which the nut isadjusted and its attaching devices may be relieved from strain. This.construction will be understood from Figs. 2 and 4. It will be seen fromFig. 4 that the carriage O has a rectangular opening in its base orfloor and that the nut E is slightly shorter than the length of thisopening, so that it will have a slight longitudinal play therein. Thenut preferably is a quarter segment or part of a usual nut, and it isformed by cutting such a full nut of the desired length into four orfive equal parts. The nut is provided with engaging and disengagingmovements by means of a lever 6 This lever is in the form of a plate.The nut is attached to its under surface by means of the screws wpassing through it. Its end a has holes 0'', through which headed studs0 extend. These headed studs screw into the. carriage-base (1 A shouldera limits the extent to which they may be screwed and provides betweenthe head a and the plate 0 sufiicient space for the vertical movement ofthe nut-lever a up and down, the portions of the studs within the holesbeing enough smaller to permit this movement of the lever. The other endof the lever is provided with a cam a", with which a lifting-pin 0projecting horizontally from the rocking arm 0, engages. The rocking armis at the end of a rock-shaft 0 which is supported by the carriage andextends to one end thereof, where it has the handle a by which it isturned. The upward movement of the pin riding upon the cam lifts thelever 0 and the nut E from engagement with the driving-screw, and thehandle a is of such weight and is then so located as to act as anoverbalance for the lever and nut 5 and to thus hold them in theirelevated position. The rocking arm 0 serves also upon the turning of theshaft 0 to move the lever e and nut E- downward and the nut into engagement with the driving-screw, and it further serves to lock the leverand nut into such engagement. This movement and locking effect isobtained by the outer end a of the rocking arm which comes into contactwith a portion of the upper surface of the lever (5 beyond the cam andrides thereon until it reaches a vertical locking position therewith,(see Fig. 3,) when the nut will be held in positive engagement with thedriving-screw. The rock-shaft has the two stops c and 0 which preferablyare cast integral with the handle 6 and which serve to limit the extentof movement of the lifting-pin e and the rocking arm 0 by contact withconvenient parts of the carriage.

The operation of theinvention is as follows: With the carriage in itsinitial or starting position and attached to the driving-screw to be fedthereby, the threads of the carriage-nut are in engagement with thethreads of a long section of the screw, and the nut is held locked insuch engaging position. Upon the starting of the feeding movement of thecarriage the nut is immediately caused to come into contact with aportion of the carriage beyond it and is held in such position by thestrain of the card-clothing or fillet upon the carriage, which oftenamounts to two or three hundred pounds. The carriage by the slowrotation of the driving-screw is then slowly fed while I the card-stripor fillet is being applied to the cylinder. When the carriage reachesthe end of the feeding movement, it is unlocked and lifted from itsengaging relation with the driving-screw and to a position entirely freeor detached from it, where it is automatically held by the action of thelifting mechanism. The carriage is then free to be returned to itsinitialor any other position at any speedrequired and one not dependentupon the speed of the driving-screw by turning the wormwheel d, which isin constant engaging relation with the thread of the driving-screw, butwhich does not serve to communicate any power from the driving-screw'tothe carriage.

Having thus fully described my invention, I claim and desire to secureby Letters Patent of the United States I.

1. In a machine of the character specified, in combination acard-clothing-applying carriage suitably supported, means for feedingit, and a sectional nut of considerable length attached to saidapplying-carriage to engage with and be disengaged from thefeedingscrew. I

2. In a machine of the character specified, a card-clothingrapplyingcarriage, means for feeding it in one direction comprising a screw and asectional nut of considerable length attached to the applying-carriageto be engaged with and disengaged from the feedingscrew, and furthermeans for moving the car rlage' n a reverse d1rect1on comprislng thefeeding-screw whenstationary, a wormewheel upon the carriage to engagethe screw and means for turning the worm-wheel, as described. v

3. In a machine of the character specified, a card-clothing-applyingcarriage, a'carriagefeeding screw, a feeding connection between thescrew and carriage actuated by the screw, and a return connectionbetween the carriage and screw engaging with the screw to mov thecarriage thereby.

L. In a machine of the character specified, a card-clothing-applyingcarriage, a carriage feeding screw, a sectional nut of considerablelength to engage the screw, means for mounting the nut in the carriagecomprising a lever loosely attached to the carriage to which the .nut issecured, means for locking the lever with the nut in engagement with thescrew,

and an abutment on the carriage in line with" the screw with which thenut comes in contact.

screw, and means for connecting the nut with, 1

the carriage, and forengaging it with and disengaging 1t from the screw.

6. In a machlne of the character specified,

a card-clothing-applying carriage, a carriage feeding screw, a sectionalnut on the carriage movable toward and from the screw, and also to alimited degree lengthwise the carriage,- and means for holding the nutin engagement with the screw and for holding it removed from the screw.

7. In a machine of the character specified, a card-clothing-applyingcarriage, a feedingscrew, a sectional nut of considerable length carriedby the carriage, means connecting the nut with the carriage comprising aplate to the under surface of which the nut is secured, having at oneend enlarged holes and at the other end a lifting-cam andlocking-surface, bolts having a loose connection with the plate passingthrough said holes and forming an at- I taching-fulcrum for the plate, arock-shaft, a

handle for turning it, and a locking-arm carried by the shaft, having asurface to engage the plate and lock it, and a pin to engage itslifting-cam.-

8. Ina machine of the character specified, a card-clothing applyingcarriage, a carriagefeeding screw, a sectional feeding-nut attached tothe carriage, and movable with relation thereto, means for releasing thenut whereby it may engage the screw, means for locking it in engagingposition, as described.

9. In a machine of the character specified, a card-clothing-applyingcarriage having two mechanisms for moving it, the one a screw and beingpositively connected. with said carriage whereby the rotation of thescrew will accomplish a slow movement of the carriage, the othermechanism-comprising a wormgear adapted to engage said carriage, as arack, as

and for the purposes described.

10. As a means for connecting and disconnecting a card-clothing-applyingcarriage with a feeding-screw, asectional nut of considerable length toengage at the same time a relatively large number of the threads of thescrew attached to the applying-carriage and movable thereon into and outof engagement with the feeding-screw, in combination with means adaptedto be operated when said sectional nut is out of said eng'agementtocause the rapid movement of said carriage along said feeding-screw, asdescribed.

CHARLES MILLS.

In presence'of EDMUND E. BLAKE,

EDWIN H. ALEXANDER.

